Operation Manual – NTPH3C S3100 Series Ethernet Switches Chapter 1 NTP Configuration1-21z Device A and Device D are two S3100 Ethernet switches. Configure Device A andDevice D to work in the NTP broadcast client mode and listen to broadcastmessages through their own Vlan-interface2.II. Network diagramVlan-int21.0.1.31/24Vlan-int23.0.1.31/24Vlan-int23.0.1.32/24Device A Device BDevice CDevice DFigure 1-8 Network diagram for the NTP broadcast mode configurationIII. Configuration procedure1) Configure Device C.# Enter system view. system-view# Set Device C as the broadcast server, which sends broadcast messages throughVlan-interface2.[DeviceC] interface Vlan-interface 2[DeviceC-Vlan-interface2] ntp-service broadcast-server2) Configure Device A. (perform the same configuration on Device D)# Enter system view. system-view# Set Device A as a broadcast client.[DeviceA] interface Vlan-interface 2[DeviceA-Vlan-interface2] ntp-service broadcast-clientAfter the above configurations, Device A and Device D will listen to broadcastmessages through their own Vlan-interface2, and Device C will send broadcastmessages through Vlan-interface2. Because Device A and Device C do not share thesame network segment, Device A cannot receive broadcast messages from Device C,while Device D is synchronized to Device C after receiving broadcast messages fromDevice C.
